Finding the Fourth Proportional to 163,009.13, 224,692.77 and 128,497.62
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Solution
The fourth proportional to 163,009.13, 224,692.77 and 128,497.62 is: 177,121.90
Step by Step Solution
- Step 1: Write the proportion equation
163,009.13 : 224,692.77 = 128,497.62 : x - Step 2: Convert to fraction form
163,009.13/224,692.77 = 128,497.62/x - Step 3: Cross multiply
163,009.13x = 224,692.77 × 128,497.62 - Step 4: Simplify right side
163,009.13x = 28,872,486,176.21 - Step 5: Solve for x
x = 28,872,486,176.21/163,009.13 - Step 6: Final answer
x = 177,121.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.